CH 03(2 of 2), Control Valve and Actuator Types: Valve Body Design & Selection

Explore the fundamental roles and requirements of control valve bodies in process control. This technical guide covers the differences between single-port, angle, and balanced plug cage-style valve bodies. Learn about the critical factors for valve selection, including fluid containment, capacity, and resistance to erosion and corrosion. We also analyze the impact of unbalanced forces on actuator selection and the advantages of cage-style trim for noise attenuation and cavitation control. Key topics include: Single-port and Angle valve configurations Bar stock vs. Cast valve bodies Balanced plug operating principles High-capacity designs for sonic gas velocities Part 2/2. Slides 64-122.